Term: external yolk syncytial layer marginal blastomere
Note: This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name.
Name: external yolk syncytial layer
Synonyms: E-YSL
Definition: The portion of the YSL that is outside of the blastoderm margin during epiboly.
Ontology: Anatomy Ontology [ZFA:0000309]
Name: marginal blastomere
Synonyms: marginal blastomeres
Definition: Cells (incompletely cleaved before the YSL forms), located at the surface just at the rim of the blastodisc, external to the deep blastomeres.
Ontology: Anatomy Ontology [ZFA:0000541]